According to the current rules, it is sufficient to defeat one guard in a single attempt. There are no differences between attempts depending on whether they contain elevators or teleporters, neither in the rules nor in the template schemes.
Suggestions for changing the rules should be presented in a more appropriate thread.
If we reason based on the principle of "what is not prohibited by law is permitted," then, of course, yes. But that is where all the logic ends.
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